Abstract: A table support structure comprises a column (11) and a foot (12). A bar (13) is disposed within the column (11) and can be rotated in the column (11) in the direction of arrow (14) and displaced in the column (11) in the direction of arrow (15). The column (11) has plates (19, 20, 21, 22) which are held together by support rods (24). A plurality of bars (13) can be simultaneously disposed in column (11) to hold a support (18) via an adapter (16). Various objects can be attached to the adapter (16) such as additional supports, plates, extension arms and the like.

Abstract: An adjustable table top (7, 105) is supported movably on a trestle having at least one abutment (5, 104) fixed thereto beneath the table top. The abutment coacts with a wedge-shaped intermediate piece (9, 106) which is displacable in an opening direction of its wedge angle, substantially parallel to the table top, and which can be introduced to a lesser or greater extent into a space between the abutment and the table top so that a distance between the table top and the abutment and, thus, the position of the table top relative to the trestle, are determined by the position of the intermediate piece.

Abstract: An office desk suited in particular for peripheral computer equipment consists of two side parts formed by columns provided with feet, a longitudinal beam detachably connected with the columns by connection elements establishing a form-locking connection, and of carrying arms for at least one table top mounted on the longitudinal beam. These components can be varied in many different ways and combined in the most different manners so that office desks optimally adapted in each case to the respective application can be realized with the same basic elements.

Abstract: In a table comprising a table-top that can be adjusted in height and/or inclination relative to the trestle, and a spring arrangement provided between the trestle and the table-top and serving to counterbalance the weight of the table, the table-top (6) is connected to the trestle at its rear edge by disengageable stops and at its front edge by clamps. The spring arrangement comprises a torsion bar spring (11) mounted preferably on the trestle (1) and provided with at least two radial arms (15, 21) bearing against the trestle (1) and the lower face of the table-top (6), respectively. Such a spring arrangement is of particularly simple design and requires only little space. Further, the torsion bar spring offers a favorable spring characteristic. A particularly soft spring effect can be achieved by the use of a stack of leaf springs (31) as torsion bar spring.

Abstract: A joint assembly for three tube sections forming the corner of a tube frame, includes a tensioning piece having ends which are hooked into openings provided in mutually facing sides of the first and second tube sections. A tensioning bolt extends through a hole in the tensioning piece and engages in a diagonally disposed threaded hole of the third tube section. The mutually facing sides of the first and second tube sections are exclusively restrained at locations which are immediately adjacent to two opposing walls of the first and second tube sections. The tensioning piece has a U-shaped cross section in a plane which is perpendicular to the common plane in which the first and second tube sections are located. The tensioning piece includes a transverse web extending transversely to the first and second tube sections and two spaced-apart legs which are parallel to the common plane in which the first and second tube sections are located.